Improvement in machines for bending scythe-snaths



H. RUSSELL'8L BIRNER. I Machines for Bending Scythe-Snaths" PatentedOct; 26.1875.

ATTORNEYS.

UNITED STATES PATENT" OFFICE.

JOHN H. RUSSELL AND GEORGE BIBNER, OF MILWAUKEE, WISCONSIN.

IMPROVEMENT IN MACHINES FOR BENDING SCYTHE-SNATHS.

Specification forming part of Letters Patent No. 169,120, dated October26, 1875; application filed February 20, 1875.

To all whom it may concern:

Be it known that we, JOHN H. RUSSELL and GEORGE BIRNER, of Milwaukee, inthe A represents the bed of the machine. B is I the stationary part ofthe form, and O is the detachable part. Each of the parts B 0 consistsof a longitudinal side bar, made in about the shape of the desiredsnaths or other articles to be bent, and having cross-plates formed uponit in such a way that the crossplates of the two parts may alternatewith each other, so that when the said two parts are put together theymay form a continuous socket, into which the snaths are forced. Thedetachable part 0 is secured to the stationary part B while the snathsare being forced into the form by pins D, inserted in holes in thedetachable part 0, as shown in Figs. 1 and 2. The form B 0 may be madeof any desired width, or, in other words, of such a capacity as tocontain any desired number of snaths, provided the movable part is notmade too heavy to be conveniently handled when filled with snaths. Tothe bed A, at the upper or larger end of the form B G, is secured aframe, E, upon the inner sides of the side bars of which are formed waysfor the ends of the cross-bar F to slide upon. Through the center of thecross-bar F is formed a screw-hole to receive the screw G, which isswiveled to the end bars of the frame E, so that the crossbar F may bemoved toward and from the form B G by turning the screw G in one and theother direction. To the outer end of the swiveled screw G is attached apulley, H, to receive the belt by which the said screw is driven fromthe driving-shaft or from a counter-shaft, and which should'be soarranged that the motion can be instantly reversed when desired. In theforward side of the upper part of the cross-bar F is formed a recess toreceive the butts of the wood to be bent.

In using the machine the wood to be bent is steamed or boiled, themovable part of the form is secured in place upon the stationary part B,and the cross-bar F is run back to the proper distance from the form BO. The timbers to be bent are then arranged with their larger ends inthe cavity of the cross-bar F,

and their smaller ends in the cavity of the form B G. The cross-bar F isthen forced forward by turning the screw G, pressing the timbers intothe form B O, and giving them the desired shape. The cross-bar F is thenrun back, the pins D are withdrawn, the movable part of the form isdetached, taking the timbers with it, and the said part 0 and thetimbers are taken to the drying-room, while a new part is applied to thestationary part B, and the machine is ready to receive another lot'oftimbers.

Any desired number of detachable parts 0 may be used with one stationarypart B, according to the amount of work to be done.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent The snath-bender herein described, consistingof bed A, separable multiple socket-B O, and frame E, provided withhollow cross-bar or pusher moved by a swiveledv screw, G, as shown andspecified.

JOHN H. RUSSELL.

. GEORGE BIRNER.

Witnesses:

WM. WAswEYLnR, CHAS. H. KUEHNE.

